Gunman bought ammo at Bethel Park gun store hours before deadly shooting at Trump rally, sources say --Shooter bought 50 rounds before the assassination attempt | 15 July 2024 | The gunman who attempted to assassinate Donald Trump purchased 50 rounds of ammunition at Allegheny Arms and Gun Works in Bethel Park hours before the former president's rally in Butler on Saturday, the Post-Gazette has learned. In a message to the PG, a spokesperson for Allegheny Arms wrote: "As a responsible member of our community it is our prerogative to cooperate with law enforcement in every way. We are thankful that President Trump was not assassinated and our hearts and prayers go out to all victims of this horrible incident..." The gun store is complying with all requests from law enforcement, sources said. Officials say Thomas Matthew Crooks, 20, took his shots with an AR-style 5.56-caliber rifle from the roof of a building about 150 yards from where Trump was speaking, killing 50-year-old Corey Comperatore, injuring David Dutch, 57, and James Copenhaver, 74, and leaving the former president bloodied and ducking for cover.